| A | B |
|---|
| proportional | the relationship between two ratios with a constant rate or ratio |
| ratio | a comparison of two numbers by division. The ratio of 2 to 3 can be written as 2 out of 3, 2 to 3, 2:3, or 2/3 |
| scale | on a map, intervals used reprsenting the ratio of distance on the map to the actual distance |
| scale drawing | a drawing that is similar but either larger or smaller than the actual object |
| scale factor | a scale written as a ratio in simplest form |
| scale model | a model used to represent something that is too large or too small for an actual-size model |
| slope | the rate of change between any two points on a line. The ratio of vertical change to horizontal change. |
| unit rate | a rate with denominator of 1 |
| unit ratio | a unit rate where the denominator is one unit |
